A. Yu

most citedOn extremal cacti with respect to the edge Szeged index and edge-vertex Szeged index

3 citations · 3 across the 1 of their papers we have counts for

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math.CO2019

Bounds for the rank of a complex unit gain graph in terms of the independence number

Shengjie He, Rong-Xia Hao, Aimei Yu

A complex unit gain graph (or $T$ -gain graph) is a triple $Φ = (G, T, φ)$ ( $(G, φ)$ for short) consisting of a graph $G$ as the underlying graph of $(G, φ)$ , $\math…

math.CO2019

On the inertia index of a mixed graph with the matching number

Shengjie He, Rong-Xia Hao, Aimei Yu

A mixed graph $G$ is obtained by orienting some edges of $G$ , where $G$ is the underlying graph of $G$ . The positive inertia index, denoted by $p^{+} (G)$ , a…

math.CO2017★ 3 cited

On extremal cacti with respect to the edge Szeged index and edge-vertex Szeged index

Shengjie He, Rong-Xia Hao, Aimei Yu

The edge Szeged index and edge-vertex Szeged index of a graph are defined as $S z_{e} (G) = uv \in E (G) \sum m_{u} (uv ∣ G) m_{v} (uv ∣ G)$ and $Sz_{ev}(G)=\frac{1}{2} \sum\limits_{uv…